Questions
The length of second's hand in a watch is 1 cm. The change in velocity of its tip in 15 seconds is
detailed solution
Correct option is D
∆v = 2vsin(9002)= 2vsin450 = 2v×12 = 2v= 2×rω = 2×1×2π60 = 2π30cm/sTalk to our academic expert!
Similar Questions
A particle moves along a horizontal circle with constant speed. If 'a' is its acceleration and 'E' is its kinetic energy
A) a is constant B) E is constant C) a is variable D) E is variable
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